dunno about intermezzo but if u want to impress go to trattoria la vecchia. their cacio e pepe is stupid good and looks fancy without being weird

if you're going tonight i'd suggest getting there a bit before 6 to grab a seat in the front rows, the view is way better and you can feel the sweat flying lol. there's a cheap food spot called khao g...

you could also look into renting a room in a hostel long term, some do monthly rates for like 5-7k baht and you'd have roommates your age plus it's way easier than dealing with a lease

have you tried those hourly rental meeting rooms like "instabase" or "sharelunge"? some of them are dead quiet and cheap during daytime, like 300 yen for 30 min. just bring your own tin whistle and no...

for sukhumvit area, try il fumo on soi 36, their lunch set is around 550 and the pasta is legit, plus it's quiet enough to talk business. not as crowded as the ekkamai spots either